#ifndef QWY_CALCULATE_H
#define QWY_CALCULATE_H

#include <string.h>
#include <iostream>
#include <QString>

class qwy_calculate
{
public:
    qwy_calculate();

    ~qwy_calculate();

    double qwy_add(double last,double now);

    double qwy_totla_add(QString str);

    double qwy_proportion(double parts,double whole);

    double qwy_growth(double last,double now);
};

#endif // QWY_CALCULATE_H
